In Chinese cuisine, "gwa" - usually translated as squash or melon - covers a wide variety of vegetables and fruits such as watermelon, fuzzy melon, winter melon, Chinese okra and bitter squash.

Remove the seeds and pith from the winter melon and cut away the skin. Cut the winter melon flesh into 8mm (⅜in) dice. Remove and discard the dark parts from the scallops. Cut the scallop coral ...